★ How breath rate measurement works ★While you are breathing, there are movements on your chest. Our advanced software algorithm is able to detect these movements. Make sure that your chest is inside the marked area.

This app works best, if the device is being hold still in a bright environment.

★ User reviews ★★★★★★ JohnSeems accurate Have tried it on many different occasions & with different people with different heart rates. It always seems quite close to what I find when checking the pulse manually. Of course, good lighting is required. Would like to compare the graph with a hospital monitor sometime but not in a rush to put myself in that situation. The option to save the graph would be nice.

★★★★★ mildlydisturbedTried it multiple times, measured, usually right EVO 3D, works fine in normal conditions (I am impressed), not so great if the light isn't constant / other people walking around the room (but not horribly off). It was generally right on with my timings, kept trying to find some fault with it but was unable to find obviously wrong. I dig.

★★★★★ SamWait, this actually works I thought this was a joke or a con. Then I tried the app. What an amazing use of image processing. Very clever, and it's not just a gimmick, it seems good enough to actually use.

★★★★★ MayoExcellent What makes it so good is being free, simple and quick. Bravo !

★★★★★ LuisGreat Accurate and works well as long as there is enough light. Recommended